Martin Canyon Quarry A
Logan County, Colorado40.90000, −103.28333
Can I collect here?
ProSee who owns this land and whether it is claimedPro shows the owner, the claim on this spot and every claim within a mile.
Based on our latest records, with claims updated from the BLM on Oct 9, 2026. Land and claims can change quickly, so check before you go.
Minerals on record here
1 mineralRecorded here: fossil.
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About Martin Canyon Quarry A
Martin Canyon Quarry A is a fossil collection site in Logan, Colorado, cataloged in the Paleobiology Database. Fossils here come from the Pawnee Creek Formation, dated to the Hemingfordian (18.5–16.3 million years ago). The depositional environment is recorded as channel. Documented finds include Didelphidae, Erinaceidae, Plesiosorex coloradensis, Plesiosorex, Pseudotrimylus roperi, Wilsonosorex conulatus.
Geologic setting
- Formation
- Pawnee Creek
- Geologic interval
- Hemingfordian
- Age
- 18.5–16.3 Ma
- Depositional environment
- "channel"
- Recorded occurrences
- 47
Geology notes
"channel fill" (Chantell 1965)
Locality notes
Martin Canyon Quarry A, NW 1/4, Section 27, T.11N., R. 53W., Logan County, Colorado
Fossils found here
Didelphidae
Mammalia · Didelphidae
Erinaceidae
Mammalia · Erinaceidae
Plesiosorex coloradensis
Mammalia · Plesiosoricidae
Plesiosorex
Mammalia · Plesiosoricidae
Pseudotrimylus roperi
Mammalia · Soricidae
Wilsonosorex conulatus
Mammalia · Soricidae
Angustidens vireti
Mammalia · Soricidae
Limnoecus compressus
Mammalia · Soricidae
Mystipterus martini
Mammalia · Talpidae
Scalopoides isodens
Mammalia · Talpidae
Proscalops secundus
Mammalia · Proscalopidae
Proscalops
Mammalia · Proscalopidae
Oreolagus wilsoni
Mammalia · Ochotonidae
Archaeolaginae
Mammalia · Leporidae
Mesogaulus paniensis
Mammalia · Mylagaulidae
Marmotini
Mammalia · Sciuridae
Hystricops
Mammalia · Castoridae
Euroxenomys
Mammalia · Castoridae
Pseudotheridomys hesperus
Mammalia · Eomyidae
Pleurolicus
Mammalia · Geomyidae
Proheteromys sulculus
Mammalia · Heteromyidae
Stratimus strobeli
Mammalia · Heteromyidae
Plesiosminthus clivosus
Mammalia · Zapodidae
Schaubeumys galbreathi
Mammalia · Zapodidae
Cynarctoides acridens
Mammalia · Canidae
Protomarctus optatus
Mammalia · Canidae
Amphicyoninae
Mammalia · Amphicyonidae
Anchitherium
Mammalia · Equidae
Parahippus pawniensis
Mammalia · Equidae
Teleoceras americanum
Mammalia · Rhinocerotidae
Menoceras barbouri
Mammalia · Rhinocerotidae
Peraceras profectum
Mammalia · Rhinocerotidae
Hesperhys
Mammalia · Tayassuidae
Merycochoerus proprius
Mammalia · Merycoidodontidae
Merychyus elegans
Mammalia · Merycoidodontidae
Camelidae
Mammalia · Camelidae
Barbouromeryx
Mammalia · Dromomerycidae
Andrias matthewi
Amphibia · Cryptobranchidae
Ophisaurus
Reptilia · Anguidae
Charina prebottae
Reptilia · Boidae
Texasophis fossilis
Reptilia · Colubridae
Cursoricoccyx geraldinae
Aves · Cuculidae
Cracidae
Reptilia · Cracidae
Acris
Amphibia · Hylidae
Priusaulax wilsoni
Mammalia · Castoridae
Miospermophilus bryanti
Mammalia · Sciuridae
Sciurus
Mammalia · Sciuridae
Records and references
Data: Paleobiology Database collection 17965 (CC BY 4.0) — view the source record
Getting there
No directions yet.
How hard is it?
- Getting there
- – / 5
- Finding anything
- – / 5
- Votes
- 0
Trip reports
No trip reports yet.
Questions about Martin Canyon Quarry A
Can you collect at Martin Canyon Quarry A?
It depends on who owns the land and whether a mining claim covers it. BLM land usually allows hand collecting for personal use, national parks allow none, and private land needs the owner’s permission. Pro members see the owner and any claims at this spot.
What minerals are found at Martin Canyon Quarry A?
Fossil.
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Source: Paleobiology Database.